comphead commented on issue #4644:
URL:
https://github.com/apache/arrow-datafusion/issues/4644#issuecomment-1376216036
This test works, it adds extra cast to Equal condition
```
#[test]
fn binary_op_date32_eq_ts() -> Result<()> {
let expr = cast(lit("1998-03-18"), DataType::Date32).eq(
cast(lit("1998-03-18"),
DataType::Timestamp(arrow::datatypes::TimeUnit::Nanosecond, None)));
let empty = Arc::new(LogicalPlan::EmptyRelation(EmptyRelation {
produce_one_row: false,
schema: Arc::new(DFSchema::empty()),
}));
let plan = LogicalPlan::Projection(Projection::try_new(vec![expr],
empty)?);
let expected =
"Projection: CAST(CAST(Utf8(\"1998-03-18\") AS Date32) AS
Timestamp(Nanosecond, None)) = CAST(Utf8(\"1998-03-18\") AS
Timestamp(Nanosecond, None))\n EmptyRelation";
assert_optimized_plan_eq(&plan, expected)?;
Ok(())
}
```
But this still fails.
```
let sql = "explain verbose select '1998-03-18'::timestamp =
'1998-03-18'::date";
```
Debugging
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